Stop Save Upon Digital Signature

Is there a way to stop the option to have to save a PDF after signing it?

I have a form with 3 digital signature fields in it.?The end user fills out the form, signs it then clicks the email button to send it to their Manager.?The Manager opens the form, signs it then a Save As dialog box comes up to save the file.?If the Manager cancels the dialog box, a prompt comes up saying ''The document could not be signed.''?The Manager process should be the same as the end users except they send the file to our HR department instead.?Currently the Managers have to save the file to their Desktop to be able to send to HR.?Is there a way around this?

Thank you for your assistance.

Stop Save Upon Digital Signature

Only one digital signature is allowed. If you have two signatures, the second signature would change the document invalidating the first signature.

Stop Save Upon Digital Signature

Hi,

First off, the previous post is incorrect, you may most certainly add multiple signatures to a PDF file without invalidating the previous signature.

Now on to your question, and the short answer is no. To expand a bit, unlike other operations that can take place in memory, thus eliminating the Save until you are ready to close the file, signing is a bit different and for security reasons the computed cryptographic hash must be over the bytes on disk. If Acrobat were going to compute the hash over a range of memory it would be susceptible to an attack where you could end up signing something other than what you thought you were signing. Because of the seriousness of a signature (imagine you were signing a contract) you wouldn't want part of the document to change during the signing operation, which is what could happen if you signed the bytes in memory.

So the bottom line is signing will always invoke a Save operation. You might have notices that you can sign a PDF online in the browser and you aren't prompted to save, but Acrobat does a full save to the temp file location. If you elect to save your signed file all you are doing is moving it from the temp folder to the save as location. Also, multiple signatures (again, disregard the previous post) require incremental saves which is what allows Acrobat to roll back to the specific signed version.

I hope this helps,

Steve

Thank you!

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